Milking-machine.



J. NIELSEN.

MILKING MACHINE.

uruon'mx FILED NOV. 21, 1912.

Patented Aug. 12,1913.

' inclosed in a cable cover, and of which one one-milklng machine or the milklng memof which I T 0 all whom 2'1 may concern chine, in which the o nected with the other or rear middle part well and with certainty.

UNITED tdATES JENS NIELSEN, 0F FREDERIK scene, uses, ccrENHaGEN, DE MARK- MILkING-MAGHINE;

Application filed November 21. I912. Serial Ito. 732,700.

Be it known that I, JENs NIELSEN, of Mariendalsvej No. 28, Frederiksberg, near Copenhagen, in the Kingdom of Denmark, have invented certain new and useful Im-' provements inMilking-Machines, of which the following is a specification.

e invention relates to a-milking .,ma- .milkin member is actuated by means of a fiexibl e cable, whicheis ing mechanism.

The invention refers machines in which two about'the width -'of the into contact with, and away fromia fix intermediate member of similar width,;in such a way that the two outer members have their upper parts first moved inwards so. that all four teats are first clamped to gethcr at the root, whereupon also the-lower part of th outer members is movedinward so that the milk flows out of the teats which are closed above. These movements are brought about by means of two cables, each has its driving or directing mem her (and these are operated successively by means of cams or the like on a common cam axle or the like) and the cable covers. of which are connected above and below with the one 01' front middle part of the milking organ, while the cables themselves are conspecially to milking milking members o udder canbe movgg' of the milking member, similarly above and below.

The object of the invention is to make a milking machine of this kind which will act According to the invention the movable milking members are suspended on one or more rod shaped driving members connected with the intermediate member'in such a way that the intermediate member can within certain limits rock or swing around a horizontal or vertical axis. There are further inserted in the connection between the two cables and their corresponding or rearrmilking member, traction springs which yield when the traction has reached a certain magnitude. This springing action also assists other or front milking member connected with the cable covers, since experiment has shown that the cable covers push or press on this milking member with ex? .eflect massage of adjustably by springs or the like, so that actly the same force as that with which the cable pulls on the other milking member. The two milking members thus exert a pressure of equal amount, each upon a pair of teats, and if the resistance of the latter, or the resistance of a single teat against the clamping together, has reached a certain limit, both the milking members will yield like springsas the result of the action of the traction springs referred to. Means are also provided to secure a proper position of the her -in relation to the other, and to act upon the latter in a manner favorable to the flowing'of' the milk. These means consist of two suitable shields, which on two or several sides, especially the front and rear sides,

' apply themselves to each other, and are cononected with-.the intermediate member mentioned. These shields which themselves execute small movements during the movements of the milkinglmembers, whereby they t e udder, are actuated they can be fitted to udders of various sizes, and the fixedintermediat'e member can be broughti to lie between the two pairs of teats.

On each side of the fixed intermediate member, between this and the movable milkingrmembers, it is advantageous to apply easily removable cases of india rubber or the like, open above and below, in which each teat hangs down. These cases'assist in rendering'the action of the milking member on the teats and the udder, or upon the roots of 'the teats more gentle.

'In the cow shed in which the present milking machine is to be brought into use, there are arranged along the rows of stalls, rotating shafts, which have for each cow the two cams or other similar actuating members above described. The cables end in lever arms which are hung'up in a common carrier which at a fixed point can be at ached so as to be easily removable in such a position that the lever comes to lie in the path of the cams. In this position the carrier is adjustable by means of a suitable member, so that the levers are moved to a greater or less extent when the cam is in action. There is a fixed regulating member of this kind for each cow, and when this is rightly adjusted the milking machine will carry out, for each cow, motions of exactly the extent required by the individual charinvoice covers 21 and 22 consist of one or several layers of a stiff and tight spirally wound metal wire. I i

In the position of thi' cams l5 and 16 shown in Fig. 1 the cables and intermediate member are at rest. These latter-are so far apart that the soft cases 4.8 which are to be applied, exert no pressure upon. the teats at any point. which latter, therefore, in this period, which constz-iutly recurs during the milking, are easily filled with milk from the udder. Byrotating theshaft 17 in the direction of the arrow 54,'the larger cam 15 will act upon theroller 14 and the lever 7, which belongs to the cable 19, with the result that traction will be extended upon this cable, while at the same time the corresponding cable cover 21 will be directed somewhat outward as the result of the reaction. The efl ect of this is that the milkin member 25, in which the cable 19 pulls, and the milking member 29 upon which the cable cover 21 presses. will move toward each other so much ab'ove that the cases 48 at their upper 1 art will beso i'ar clamped to ether that all the fourt teats which hai'ig own in these cases, will be shut- 0d at the root. In consequence ofthespecial form of the cam 15, this condition-of traction and pressure will be maintained unchanged during half a ro tation of the shaft 17 A suitably short time after the teats have been clamped at the root, the other cam 16 begins to act upon the second roller 14 and the second lever 7, which belong tothe cable 20 with the result that traction is exerted upon this cable also, while the corresponding cable cover 22 exerts pressure. As the result of this traction and pressure the lower parts of the milking member 25 and 29 are brought together. the

effect of this being that the cases 48 are pirssed against the teats from above downwaid and cause the milk to fiow out of the latter. When this action ceases the action of the cam 15 ceases first, and that of the cam 16 immediately afterwards, and the various parts then resume the position shown in the drawing, on the one hand through the proper action of the cable covers and on the other hand by the action of the springs 37. It is to be noted that the holes 36 of the milking members 25 and 29, by which the guide rod 35 is guided, oiler no hindrance to the execution of the rocking or reciprocating movemenlrbythe milking members on this rod already described.

When the relative distance of the shields l0 and 39 and their'position in relation to the fixed intermediate member 33, have been' properly adjusted for a particular udder, that is to say by adjustment in relation to the plate =12, which is indirectly connected with the intermediate member 33, the intermediate member will be in the middle between the front and rear pairs of teats, and

all the four teats will be regularly acted upon. g

If one pair of teats be somewhat thicker than the other, this difference will be eliminated by the fact that the intermediate member 33, that is to say the whole milkingmachine will shift forward or backward during the periods of traction and pressure to a small extent of its own accord. If the one 6. g. the right teat of one pair is thicker than the other, this difference will be eliminated by the fact that the corresponding ther clear that not only does the upper spring 26 act, when the milking members come together above, but the lower springs 26 can be stretched during this movement.

Conversely the upper springs 26 can" be the left cushion 32 comes to liev member 33 than the stretched when the milking members $03 116 nearer together below. r;

Wren the milking of one-cow is finished the milking machine is taken awayf'the handle 10 of the carrier 6 and the arm 9 are grasped by the hand so that the hook 8 'is freed from the screw 12, the carrier is transferred to the next stall, and the milking machine is fitted to the next cow. Such great variations as may occur in the dimension of the teats owing to the different ages and the size or abnormality of the cows must be allowed for beforehand in adjusting the screws 12. The form of construction of the driving members, adjusting members, milking members, guiding members etc. may be modified in various ways without departing from the essential features of the invention.

Having now particularly described and ascertained the nature of my said invention and in whatmanner the same is performed, I declare that what I claim is:

1. A milking machine, comprising a sta tionary milking member, adjustable side milking members, a suspension-rod for the side-members passing through the stationary member, cables and cable-covers connected with the side milking members, and means for'actuating the cables and cable covers independently of each other.

2. A milking machine, comprising a sta -t1onary member, ad ustable side-members,

a guide rod passing through the stationary and side members, said rod being made rectangular in cross-section, cables guided in the stationary member and connected by springs with one of the side-members, cablecovers connected With-the other side milkingmember, and means for imparting independent reciprocating motion to said side-members.

3. A milking machine. comprising a stationary milking member, adjustable side milking members, a guide-rod passing through the stationary and side members, said rod being made rectangular in crosssection, cushioning springs interposed between the stationary and side milking members, cables guided in the stationary member and connected by springs With one of the sidemembers, cable-covers connected with the other side milking member, and means for imparting independent reciprocating motion to said side-members.

4. A milking machine, comprising a stationary member, spring-cushioned side milking members, a central guide-rod for the said members, cables connected yieldingly With one side-member, cablecovers connected yieldingly With the other sidemember, means for imparting reciprocating motion independently of each other to said cables and cablecovers, means for supporting the cable-actuating means, and -means for releasing said cable-actuating means from the driving means or placing; the same in operative connection therewith 5. A milking machine, comprising a stationary member, spring-cushioned side milking members, a guide-rod passing through the stationary and side members, and supports on said guidea'od provided With yielding adjustable shields for applying the milking devices to the udder.

6. A milking machine, comprising a stationary member, spring-cushioned side milking members, means for applying'the same to the udder, and cases for the teats introduced between the'side milking members and stationary member.

In testimony, that I claim the foregoing as my invention, 1 have signed my name in presence of two subscribing WliJIlQSSGS,

JENS NIELSEN. Witnesses:

ERNEST BOUTARD, HJALMAR BOUTARD. 

